Trace number 1523868

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
Hybrid2 2009-03-22SAT 3.43748 3.44256

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S419666888-007.cnf
MD5SUM0d6d5d5399446131b06db17642f36592
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.342947
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

3.39/3.44	c try 1 flip j 3295062
3.39/3.44	c A solution is found
3.39/3.44	s SATISFIABLE
3.39/3.44	v -1 2 3 -4 -5 -6 -7 -8 -9 -10 11 12 -13 14 15 -16 17 18 19 20 21 -22 23 -24 -25 -26 27 -28 -29 -30 -31 32 -33 34 35 36 -37 38 -39 -40 -41 42 -43 -44 45 -46 47 48 -49 50 -51 52 53 -54 55 -56 57 -58 -59 60 -61 62 63 -64 65 -66 -67 -68 -69 -70 71 -72 73 74 -75 -76 -77 78 -79 -80 81 -82 83 84 -85 86 87 88 89 90 91 92 93 -94 -95 96 -97 98 99 -100 -101 -102 -103 -104 -105 -106 -107 108 109 -110 111 112 -113 -114 115 116 117 -118 119 120 -121 122 -123 124 125 -126 -127 -128 129 130 -131 132 133 134 135 -136 -137 -138 -139 140 141 -142 143 -144 145 -146 147 -148 149 -150 151 -152 -153 154 155 156 157 158 159 -160 161 -162 -163 164 165 166 167 168 169 -170 -171 172 173 174 175 176 -177 -178 -179 -180 181 -182 -183 -184 185 -186 -187 -188 189 190 191 -192 -193 194 -195 -196 197 -198 199 200 -201 -202 -203 204 205 206 -207 208 209 210 -211 -212 213 -214 -215 216 217 -218 -219 -220 -221 222 223 -224 225 226 -227 -228 229 230 231 232 233 234 235 236 237 -238 -239 -240 241 -242 -243 -244 -245 246 -247 -248 -249 250 -251 252 -253 -254 -255 -256 257 -258 259 -260 261 -262 -263 -264 265 -266 -267 268 269 -270 -271 272 -273 274 -275 -276 277 -278 -279 -280 281 -282 283 -284 -285 286 -287 288 -289 290 291 -292 293 -294 -295 -296 297 298 299 -300 -301 -302 303 -304 305 306 -307 -308 -309 310 -311 -312 313 -314 -315 316 -317 318 319 -320 321 322 -323 324 -325 326 327 -328 329 330 -331 332 -333 -334 -335 -336 -337 -338 -339 -340 -341 342 343 -344 345 346 347 348 -349 350 351 352 -353 354 -355 -356 357 358 359 -360 361 -362 363 -364 365 366 367 -368 369 -370 -371 372 -373 374 -375 376 377 378 -379 380 -381 -382 -383 -384 -385 -386 -387 -388 -389 390 -391 392 -393 -394 395 -396 -397 398 -399 400 
3.39/3.44	v 0 
3.39/3.44	c Done (mycputime is 3.430 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1523868-1238580692/watcher-1523868-1238580692 -o /tmp/evaluation-result-1523868-1238580692/solver-1523868-1238580692 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523868-1238580692.cnf 574672284 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 24111
/proc/meminfo: memFree=1529600/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=450940 CPUtime=0
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 131 0 0 0 0 0 0 0 18 0 1 0 1130734816 461762560 115 1992294400 134512640 135106774 4294956208 18446744073709551615 134524119 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 112735 115 53 145 0 111611 0

[startup+0.104902 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 24111
/proc/meminfo: memFree=1529600/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=0.1
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 10 0 0 0 18 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134518201 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 455000

[startup+0.201917 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 24111
/proc/meminfo: memFree=1529600/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=0.2
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 20 0 0 0 18 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134567425 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 455000

[startup+0.301935 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 24111
/proc/meminfo: memFree=1529600/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=0.3
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 30 0 0 0 19 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 455000

[startup+0.702002 s]
/proc/loadavg: 1.99 1.85 1.45 3/64 24111
/proc/meminfo: memFree=1529600/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=0.7
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 70 0 0 0 22 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134526850 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 455000

[startup+1.50114 s]
/proc/loadavg: 1.99 1.85 1.45 2/65 24112
/proc/meminfo: memFree=1528952/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=1.49
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 149 0 0 0 25 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134565653 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 455000

[startup+3.10141 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 24112
/proc/meminfo: memFree=1528824/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=3.09
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 309 0 0 0 25 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134528753 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 455000

Solver just ended. Dumping a history of the last processes samples

[startup+3.20143 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 24112
/proc/meminfo: memFree=1528824/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=3.19
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 319 0 0 0 25 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134565660 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 455000

[startup+3.40547 s]
/proc/loadavg: 1.91 1.84 1.45 2/65 24112
/proc/meminfo: memFree=1528696/2055920 swapFree=4179416/4192956
[pid=24111] ppid=24109 vsize=455000 CPUtime=3.39
/proc/24111/stat : 24111 (Hybrid2) R 24109 24111 23766 0 -1 4194304 178 0 0 0 339 0 0 0 25 0 1 0 1130734816 465920000 162 1992294400 134512640 135106774 4294956208 18446744073709551615 134528394 0 0 4096 0 0 0 0 17 1 0 0
/proc/24111/statm: 113750 162 56 145 0 112626 0
Current children cumulated CPU time (s) 3.39
Current children cumulated vsize (KiB) 455000

Child status: 10
Real time (s): 3.44256
CPU time (s): 3.43748
CPU user time (s): 3.43448
CPU system time (s): 0.002999
CPU usage (%): 99.8522
Max. virtual memory (cumulated for all children) (KiB): 455000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.43448
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 195
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 14

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node25 at 2009-04-01 12:11:32
IDJOB=1523868
IDBENCH=70687
IDSOLVER=530
FILE ID=node25/1523868-1238580692
PBS_JOBID= 9070528
Free space on /tmp= 66264 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S419666888-007.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523868-1238580692/watcher-1523868-1238580692 -o /tmp/evaluation-result-1523868-1238580692/solver-1523868-1238580692 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523868-1238580692.cnf 574672284

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0d6d5d5399446131b06db17642f36592
RANDOM SEED=574672284

node25.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.263
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1530016 kB
Buffers:        106016 kB
Cached:         317856 kB
SwapCached:       7316 kB
Active:         211672 kB
Inactive:       221020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1530016 kB
SwapTotal:     4192956 kB
SwapFree:      4179416 kB
Dirty:            4604 kB
Writeback:           0 kB
Mapped:          14552 kB
Slab:            79224 kB
Committed_AS:  3291264 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66260 MiB
End job on node25 at 2009-04-01 12:11:36